文档介绍：] ~7 第19卷第5期 l999年9月生态学报 ACTAECOIoG1CASIN1CA VoI_19, Sept,1999 石菖蒲(Acorustatarinowii)克藻效应的研究何池全,叶居新(1中国科学院长春地理研究所,长春 130021;,南昌 330047) 零 ,7·0 ■量;石菖蒲(A倒 tatariow~i)p制藻类的机制除了对光和矿质营养(N、P等)的竞争外,(化感作用attelopathiceffect),用培植石菖蒲的水培养藻类,可破坏藻类的叶绿紊 a,使其光舍速率、细胞还原TTC能力显著下降在荧光显徽镜下可看到藻细胞从鲜红色变为淡蓝色,表明石菖蒲对藻类有显著的克制效果,可用于治理富营养化求体中的藻类繁生;通过根系分泌物的提取实验,显示该分泌物对同一受体产生浓度效应,它的浓度阈值为30~45ut/disc 关键调;石菖蒲F化感|囊类;分泌物作用 InhibitoryeffectsofAcorustatarinowiionalgaegrowth HEChi—Quan,YEJu—Xin (?gchInstituteofGeogrophy,ChineseAcadamyofSciowcsChangchuu 1302i,China;~ofBiology'ca1ScienceandEnnee~ng,NanchangUni~rsity,Nanchang330047) AbstractTheinhibitoryeffectofAcorustatarinoz~iionalgaegrowthwasstudied,pe— titions0flIzhtandminerialnutrientsbetweenAcorustatarinowiiandalgae,themachanismofthisinhibito anicsubstancesfromtherootsystemandrhizomeofA一∞mstatarinowiiwhichmayinjureandabatethealgaecells(Allelopathieeffect).whenthealgalcellswere treatedwithcuIturedwater0fAcorustatam'nowii,chlorophyllawasfoundtobedestroyed,andthephoto— svnthe廿crate0faIgaemarkedlydecreased,underfluorescencemicroscopeitwasseenthatalgalceilsturned t0haveanc0ncentrationeffect,itsthresholdofconcentrationis30~45ul/disc. [Kewords~:Acorustatarinowii~allelopathyFalgae~secretingeffect 文章编号:1000—09330999)05